In Moodle 2.5 the non-editing teacher and teacher roles could edit student pages when a wiki was running in Individual mode. We used a wiki with separate groups, in Individual mode, to allow teachers to write notes about each student. In Separate groups mode, the teacher had a drop-down menu on the left hand side of the page that displayed their group name, and the list of students within it. Clicking on the student name took you to a page for that student, that you could then edit.

Since our upgrade to 2.7, the teacher and non-editing teacher can view the page, but cannot edit it.

I’m assuming that this is a bug that got fixed, but I can’t find a tracker item for it. For us, it was a feature, and one we’d dearly like to get back!